Note: A player's nationality is determined by his FIFA affiliation first, and his country of birth second. Also, a player must have been capped for his repective senior national team before or during his Metro career for the FIFA affiliation to count for our sake. Examples:
Jerrod Laventure: born in USA, capped for Haiti during Metro career → Haiti.
Jeff Agoos: born in Switzerland, capped for USA before Metro career → USA (not listed).
Petter Villegas: born in Ecuador, capped for Puerto Rico after Metro career → Ecuador.
Dahir Mohammed: born in Ethiopia, capped for USA on the youth level → Ethiopia.
Salou Ibrahim: born in Ghana, citizen of Belgium, has not been capped for either → Ghana.